1. Department of Infectious Diseases, Ningbo Hospital of Zhejiang University, Zhejiang University, Ningbo, Zhejiang, China
2. Department of Infectious Diseases, Ningbo First Hospital, Ningbo University, Ningbo, Zhejiang, China
3. Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, Nottinghamshire, United Kingdom
4. Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China